Set gold and gems to their maximum limits to facilitate weapon tempering. The Weapon Mastery
Setting stats to "9999" or beyond intended limits can sometimes cause the game to crash or soft-lock during certain cutscenes. Console Resigning: Dynasty Warriors 8 Xtreme Legends Save Editor
Rather than grinding thousands of battles, you can instantly maximize your roster's effectiveness: Level & Stat Modification: Instantly set any character to the maximum level of Set gold and gems to their maximum limits
While using a save editor is powerful, it comes with a few caveats. Here is the general workflow and how to keep your data safe. Dynasty Warriors 8 Xtreme Legends Save Editor